WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
DTC No.
Self-diagnosis item
DTC Detection Condition
Possible causes
B2456
SEAT BLT PWR AS CIRC
Pre-crash seat belt control unit RH power supply circuit is open or shorted
Harness or connectors
[Pre-crash seat belt control unit RH circuit is open or shorted]